Definition: In this task, you are given inputs i,j, and A, where i and j are integers and A is a list. You need to return the sum of all the numerical elements in the list A between the positions i and j (including positions i and j). Return 0 if no numerical element is present in the list between the given ranges. i and j will be non-negative, and will always have a value less than the length of A. i will always be less than j.
Input: 3, 6, ['p', '4043', 't', '3125', 'q', '4621', 'P', '3347', 'v', 'o', 'W', 'K', '3491', '483', 'q', '1679', 'k', '8317', 'n', '8007', 'n']

7746